# Trigonometry Hong Kong vs NASM CPT Practice Test

The clearest difference is in-app purchases: Trigonometry Hong Kong at none against NASM CPT Practice Test's 2. NASM CPT Practice Test's advantage is update cadence (every 3 months vs every 34 months) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. NASM CPT Practice Test sells 2 one-off in-app purchases. Trigonometry Hong Kong asks for nothing beyond the download.

Trigonometry Hong Kong ships an update every 34 months, NASM CPT Practice Test every 3 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Trigonometry Hong Kong | NASM CPT Practice Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/trigonometry-hong-kong/id1557131849/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 4 MB | 52 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [See Yan Wong](https://appshunter.io/developer/1453422332) | [Nova Scotia Limited](https://appshunter.io/developer/1757830011) |

## What reviewers say

### Trigonometry Hong Kong

[App page](https://appshunter.io/ios/app/trigonometry-hong-kong/id1557131849)

This app provides a comprehensive guide to trigonometric formulas essential for Hong Kong university entrance exams. It covers a wide range of formulas, from basic sine and cosine to more advanced compound and subsidiary angle identities.

**Highlights:** Compound Angle Formulas, Subsidiary Angle Formulas, Double Angle Formulas, Triple Angle Formulas, Half Angle Formulas, Product-To-Sum Formulas, Sum-To-Product Formulas

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### NASM CPT Practice Test

[App page](https://appshunter.io/ios/app/nasm-cpt-practice-test/id6745927801)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $9.99 | one-time |
| Lifetime Offer | $9.99 | one-time |


## Frequently asked questions

### Is Trigonometry Hong Kong free?

Trigonometry Hong Kong is free to download, with no in-app purchases.

### Is NASM CPT Practice Test free?

NASM CPT Practice Test is free to download, with in-app purchases available.

### Do Trigonometry Hong Kong or NASM CPT Practice Test have ads?

Neither Trigonometry Hong Kong nor NASM CPT Practice Test shows ads.

### Which is updated more often, Trigonometry Hong Kong or NASM CPT Practice Test?

Trigonometry Hong Kong ships an update every 34 months, and NASM CPT Practice Test every 3 months. Most recently, Trigonometry Hong Kong was updated on November 3, 2026 and NASM CPT Practice Test on November 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*